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Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites

Abstract:
The mixed-halide perovskite FAPb(BryI1–y)3 is attractive for color-tunable and tandem solar cells. Bimolecular and Auger charge-carrier recombination rate constants strongly correlate with the Br content, y, suggesting a link with electronic structure. FAPbBr3 and FAPbI3 exhibit charge-carrier mobilities of 14 and 27 cm2 V−1 s−1 and diffusion lengths exceeding 1 μm, while mobilities across the mixed Br/I system depend on crystalline phase disorder.
Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1002/adma.201502969

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
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Engineering and Physical Sciences Research Council More from this funder
Publisher:
Wiley-VCH Verlag Publisher's website
Journal:
Advanced Materials Journal website
Pages:
n/a-n/a
Publication date:
2015-09-24
DOI:
EISSN:
1521-4095
ISSN:
0935-9648
URN:
uuid:03c72041-954f-475c-980e-2e6d200b9063
Source identifiers:
580280
Local pid:
pubs:580280

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